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![](Fchy_frame60choice1a.jpg) |
Posterior margin (pm) of valves with teeth along entire edge. |
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![](Fchy_frame60choice2a.jpg) |
Posterior margin (pm) of valves without teeth along entire edge. Teeth if present, only found on or before the inferoposteal angle (ia). |
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Taxonomy |
Phylum |
Arthropoda |
Subphylum |
Crustacea |
Class |
Branchiopoda |
Suborder |
Cladocera |
Family |
Chydoridae |
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